ESOS (Energy Savings Opportunity Scheme) is an energy assessment scheme that is mandatory for large organisations in the UK with more than 250 employees, turnover in excess of €50m and an annual balance sheet total of €43m. The Environment Agency is the UK scheme administrator.
On 26 June 2014, following a consultation process in 2013, the Department for Energy and Climate Change (DECC) published the ESOS Regulations 2014, which give effect to the scheme.
How the scheme works
An ESOS Assessment requires participants to do three things:
ESOS will operate in four-yearly compliance phases. Organisations in the UK must assess whether or not they are required to participate in ESOS on the qualification date of each phase. The qualification date for the first phase is 31 December 2014 (Compliance date 5th December 2015). Phase 2 31st December 2018 (Compliance date 5th December 2019). Phase 3 31st December 2022 (Compliance date 5th December 2023).